Electric-light socket



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/6 Z223 zz/enz/of Z DA/WEL 6 57000490 Quia Patented Mar.I 12

UNITED STATES PATENT OFFICE.

DANIEL G. STODDARD, OF WAYZATA, MINNESOTA; VILLETTE A. STODDARD ADMIN- ISTRATRIX OF SAID DANIEL G. STODDARD, DECEASED, ASSIGNOR TO MANUFAC- TURERS SERVICE CORPORATION, OF MINNEAPOLIS,\MINNESOTA, A CORPORATION F MINNESOTA.

ELECTRIC-msnm socxE'r Application ledvJune 13, 1925. Serial No. 36,934.

This invention relates to new and useful improvements in electric light sockets and more particularly relates to improvementsin such sockets of the type adapted to besecured to the endof an electric light cord such for instance, as the port-able lights commonly employed in automobile repair shops, and the like; or to such lights of the type adapted to be suspended from the end of an electric light corddepending from a ceiling or other supporting means.

An object of the inventionis to providean electric light'socket having a fastening means mounted therein to which th,e reinforcing strand of the light cord may' be secured, thereby relieving the conductors in the cord of unnecessary strains.

The particular object of the invention therefore is to provide an improved electric light socket. l

Other objects of the invention will appear from the following description and the accompanying drawings and will be pointed out in the annexed claims.

In the accompanying drawings there has been disclosed a structure designed to carry out the various objects of the invention but it is to be understood that the invention is not confined to the exact `features shown as various changes may bemade withinl the scope of the claims which follow.

In the drawings: Figure 1 is asectional view of a common form of socket showing the invention ap-l plied thereto;

Figure 2 is a cross-sectional view on the line 2-2 of Figure 1;/

Figure 3 is a right angle view ofthe structure shown in Figure 1, but showing the reinforcing strand securedin a slightly different manner; and

Figure 4 is a similar view showing a modifed construction.

In the selected embodiment of the invention here shown there is illustrated a socket of ordinary construction such asl a candle socket comprising the usual inner shell 5 suitably mounted upon a base 6, preferably of a suitable non-conductive material such 5o as porcelain. The inner shell 5 and base 6 are mounted within an outer shell l7 which` is insulated therefrom b means of an insulating sleeve 8 of `or inary construction.

.'in detail.

An important feature of thisinvention resides in the novel means provided for relieving the conductors 11 and 12 of unnecessary strain when a pull is exerted on the sockets.

Referring to the d-rawing it will be noted that the cable conductors 11 and 12 are mounted within a fiexible casing 13 of ordinary construction, whichl passes through an aperture 14 in the cap 15 mounted in threaded engagement upon the outer casing 7, as

shown. A reinforcing strand or cable 16 is also mounted within the casing 13 and is adapted to. have its endsecured in such a manner that, when the-electric light cord, comprising the cables 11 .and 12, is acciden-` tally pulled, the reinforcing strand 16 will take up the strain and thereby relieve the conductors of such unnecessary st-rain.

The means provided Within the socket for securing thereto one end of the reinforcing strand, preferably consists in mounting a bracket 17 upon the porcelain base 6 and securing it thereto by suitable means, not necessary to be shown.

An insulating bar 18 is mounted in the bracket 17 and secured thereto by a rivet 19. The bracket 17 also preferably has a hub 21 formed thereon adapted to receive the end of the casing 13 to secure the latter to the socket. The hub.21 ispreferably provided Vwith oppositely extending ears`22 which are apertured to receive the small bolts 23 shown in Figures 1 and 2. When these bolts are tightened the split `portions of the hub 21 will be securely clamped against the casing 13 thereby securely holding it in place therein. The'hub 21 is also preferably provided with feet 20 for securing it to the cap 15, thereby preventing the bracket and shell 5 from relatively rotating within the outer shell 7 and also from longitudinally moving therein. t

When securing the electric light cord to after which the bolts 23 may be tightened,

- .with portable lights such as are use reinforcin the socket, the cables 11 and 12 are connected with the inner shell, as above described, after which the end of the reinforcing strand 16 is wrapped about the bar 18 and its end inserted between the ears 22 of the hub 21,

thereby securely-clamping the end of the reinforcing strand therebetween. p A knot 24 may be tied in the end of the strand 16 to prevent it from vaccidentally slipping through between the earsV 22 when the cord and socket areI in use. The conductors 11 and 12 are preferably provided withsuffi-y cient slack within the socket, as shown, so that when a pull is exertedupon the cord or conductors it will be taken up by the reinforcing strand.

Figure 3 shows a construction similar to that shown in Figure 1, but showing the reinforcing strand tied to the bar 18 in a slightly dlfferent manner. As here shown the split ends of the reinforcing strands are wrapped about the bar 18, and are securely tied together to form a knot 25 as shown.

Figure 4 illustrates a modified construction wherein the split ends 26 of the reinforcing strand 16 are secured to a pair of screws 27 mounted within the cap 15 as shown. In the structure here shown the casing 13 -is secured to a clamp`28 having a projecting flan e 29 mounted within the cap 15, and which unctions to prevent the clamp and therefore the case 13` from becoming separated from the socket. .In the structure here shownv the base. 6 may be ,supported upon a bracket 31 secured to the cap-15 by such means as the screws 32.

By the employment of the novel means provided within the socket-for securing thel reinforcing .strand 16 thereto, it will b e readily be seen and understood that when thus connected any strain exerted on the electric cord, within which the reinforcingstrand 16 is mounted, will be substantially taken vup by the reinforcing'strand thereby relieving the conductors lland 12 of any such strain, andalso substantially eliminating all danger of the conductors becoming( accidentally which is a common occurrence, es ecially 1n re- ,pair sho sand the like, and also in drop li hts o the type suspended from the end oalihtcord.. v\

I claim as m invention:

1. An electric light socket comprising a shell adapted to receive a light bulb, a base for the shell, a pair of. electric conductors mounted within a casing and having their ends electrically 'connected to said shell, a strand also mounted within the casing, a racket securedto the base, a bar mounted in the bracket adapted to have the end of the reinforcing strand coiled thereabout and a clamping means on said bracket disconnected vfrom the socket,u

adapted to receive the end of said rcasing and to secure the free end of said reinforcing said conductors the strain will be taken up by the reinforcin strand.

2. An electric ight socket comprising a shell adapted to receive a light bulb, a base for the shell, a pair of electric conductors mounted within a casing and having their ends electrically connected to said shell, a reinforcing strand also mounted within the casing, a bracket secured to the base, a bar mounted in the bracket adapted to have the end of the reinforcing strand coiled thereabout, and a clamping means on said bracket adapted to receive'the end ,of said casing and to secure the free end of said reinforcing strand, whereby when a pull is exerted upon said conductorthe strain will be taken up by the reinforcingstrand, said means comprising a split hub adapted to receive and securely clamp the casing and the end of the reinforcing means therein.

V 3. A device of the class described comprising a shell, an electric socket within said shell having a bracket attached thereto, said bracket providing a tubular element, and a cross member secured within the bracket between the tubular element and the socket, and substantially diametrically yrelated to said tubular element. 4. Adevice of the class described comprising a shell, an electric socket within said shell having a' 'bracket attached thereto, said bracket providing a tubular portion substantially. axiall parallel with the axis of the socket, andI within the frame between the tubular element and the socket in substantially diametric relation to said element, said element being split, and means for drawing the separated portions of said tubular element together to change ,its calibre.

5. An electric socket having a bracket attached thereto, said bracket providing an open portion, and further providing a tubular element extending outwardly beyond said the axis of the tubular.element,said tubular element being split, and clamping screws for drawing the split portions together.

strand, whereby when a pull'is exerted upon a cross member secured 6. An electric socket having a bracket attachedl to its outer end face, said bracket providing an open portion adjacent the socket, and further providing a tubular element outwardly beyond the open portion,

the said tubular element having its axis substantially aligned with that of the axis of the socketand a bar crossing said open portion and secured to said frame, the axes havin substantially a diametric relation to the tu ular element.

7. A- device ofthe class described comprising a shell, and )a closure cap therefor, an electric socket within the shellhaving a bracket attached thereto and to the/closure cap and a member secured within the bracket between the-socket and cap, said member arlsocket, and having purpose set forth.

9. A device of prising a shell, an electric socket within the ,shell anda removable c1osure`cap for the shell, a bracket arranged within the shell and held againstv movement in opposite dif f an insulating bar for the' rections by the socket and cap and having 2o across bar :for the purpose setforth.

In witness whereof, I have hereunto set my hand this 10th day of June, 1925. c DANIEL G. STODDARD.

the class described coni- 15 

